Committee - NFPA · SUBMITTER: Timothy G. Stillman, Fort Lauderclale, FL RECOMMENDATION: 1. Revise...

Report of the Committee on

Emergency Power Supplies

Deimont C. Thurber, Chair Great Fails, MT

MnnuelJ. DeLerno, Secretary S-P-D Industries Inc., IL

Ernest E. Allen, Ohio Hospital Insurance Co., OH Rep. NFPA Health Care Section

James IL Bell, Stewart & Stevenson Services Inc., TX Rep. Electrical Generating Systems Assn.

Lawrence A. Bey, Onan Corp., MN A. Dan Chisholm, Motor andGenera tor Inst. (MGI), FL Dennis De.Moss, Sargent & Lundy, IL William H. Everard, Everard Fire Protection Engr Ltd, VA Gordon S. Johnson, Dundee, FL Rep. Inst of Electrical and Electronics Engr, Inc.

Charles IL McDonald, McDonald Equipment Co., OH Daniel.[. O'Connor, Schirmer Engr Corp., IL T. D. ShocHey, Memphis State University, TN Ronald M. Smidt, New Hanover Regional Medical Center, NC

Rep. American Hospital Assn. Timothy G. Stiliman, Ft. Lauderdaie, FL David G. Strasser, Marathon Electric Mfr Corp., WI

Rep. Nat'l Elecuical Mfrs. Assn. James E. Tyson, U.S. Dept. of Veterans Affairs, DC David E. Watters, H F Lenz Co., PA

Alternates

Douglas S. gaJckson, American Hospital Assn., IL (Alt. to 1L M. Smidt)

James IL Iverson, Onan Corp., MN (Alt. to L. ~ Bey)

David IL Norton, U.S. Dept. of Veterans Affairs, DC (Alt. toJ. E. Tyson Jr.)

Staff Liaison: Burton IL Klein

This list represents the membership at the time tke Committee was balloted on - the text of this edition. Since that time, changes in the membership ma 3 have

occurred.

Committee Scope: This Committee shall have primary responsibility for documents on performance criteria for the selection and assembly of the components for emergency and standby power systems in buildings and facilities including categories of power supplies, transfer equipment, controls, superwsory equipment and all related electrical and mechanical auxiliary or accessory equipment needed to supply emergency or standby power to the utilization equipment. The Committee shall also be responsible for criteria on the maintenance and testing of the system. This committee does not cover requirements for the application of emergency power systems, self-contained emergency lighting units and the electrical wiring except that wiring which is an integral part of the system up to the load side of the transfer switch(es).

The Report of the Committee on Emergency Power Suppliesis presented for adoption in two parts.

Part I of this Report was prepared by the Technical Committee on Emergency Power Suppfies and proposes for adoption amendments to NFPA 110-1993, Standard on Emergency & Standby Power Systems. NFPA 110-1993 is published in Volume 5 of the 1994 National Fire Codes and in separate pamphlet form.

Part I of this Report has been submitted to letter ballot of the Technical Committee on Emergency Power Supplies which consists of 17 voting members and the results of the balloting can be found in the report.

Part II of this Report was prepared by the Technical Committee on Emergency Power Supplies and proposes for adoption amendments to NFPA 111-1993, Standard on Stored Electrical Energy Emergency & Standby Power Systems. NFPA 111-1993 is published in Volume 5 of the 1994 National Fire Codes and in separate pamphlet fogm.

Part II of this Report has been submitted to letter ballot of the Technical Committee on Emergency Power Supplies which consists Of 17 voting members and' the results of the balloting can be found in the report.

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PART I

(Log #46) 110- 1 - (Entire Document): Reject SUBMITTER: Timothy G. Stillman, Fort Lauderclale, FL RECOMMENDATION: 1. Revise standard to include accessibility requirements for handicapped persons in accordance with "Ameri- cans with Disabilities Act.-- 2. Revise standard to include guarding provisions for machinery in

accordance with "Occupational Health and Safety Act." 3. Add to 3-3.3.6: "Integral accessory battery charger shall be mechanically guarded." 4. Add to 3-5.3.1: "Governor drives shall be mechanically guarded." 5. Addto 3-5.3.3 (3-5.5.1): "Instruments and controls shall be wheelchair accessible." 6. Addto 3-5.6.1: "includingpersonnel in wheelchairs."

SUBSTANTIATION: Recent changes in federal laws require conformity in this standard. COMMITTEE ACTION: Reject. COMMITTEE STATEMENT: Issue is outside the scope of the committee. Requirements are covered by the Federal government, which will, at some point, develop criteria relative to disabled

mrsons ER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17

VOTE ON COMMITTEE ACTION: AFFIRMATIVE: 14 NEGATIVE: Stillman NOT RETURNED: Everard, O'Connor

EXPLANATION OF NEGATIVE: STILLMAN: As enforcement of the Americans with Disabilities Act

takes place through Civil Rights lawsuits, incorporation of accessibility requirements is a defense to such suits. There will NOT be any standards developed in this area, as each case will have to be adjudicated on its own claims or merits.

(Log #43) 110- 2 - (1-1.1): Reject SUBMITTER: TimOthy G. Stillman, Fort .Lauderdale, FL RECOMMENDATION: Add wording:

"or is not available due to off-site failures of the power distribution/ system." SUBSTANTIATION: Hurricane "Andrew" experience show that long term failures (over five months) are possible. The standard should reflect this fact. COMMITrEE ACTION: Reject. COMMITTEE STATEMENT: Committee believes that the term "normal power source" is all inclusive, and includes anything that relates to the delivery of electric power to the facility. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:

AFFIRMATIVE: 14 ABSTENTION: Stillman NOT RETURNED: Everard, O'Connor

EXPLANATION OF ABSTENTION: STILLMAN: I feel that the issue of "normal Power Source" is

obscure, and needs to be further identified for the Field Inspection forces.

(Log #GP5) 110- 3- (1-4 (New)): Accept SUBMITTER: Technical Committee on Emergency Power Supplies, RECOMMENDATION: Insert new 1-4 to read: 1-4 Discretionary Powers of AuthorityHavingJurisdiction. Nothing

in this document is intended to prevent the use of systems, methods, or devices of equivalent or superior quality, strength, fire resistance, effectiveness, durability, and safety to those prescribed by this document, providing (a) technicaljustificatton is submitted to the authority having jurisdiction to demonstrate equivalency, and (b) the system, method, or device is approved for the intended use. SUBSTANTIATION: Allow the use of equivalent methods, etc., if acce table to the authority havin "urisdiction. c O e ~ E ACTION: Accep~ gj NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION: AFFIRMATIVE: 15 NOT RETURNED: Everard, O'Connor

(Log #8) 110- 4- (2-2): Accept SUBMITTER: Charles P,. McDonald, McDonald Equipment Company

, RECOMMENDATION: Seismic Risk Areas. Defined as intensifies I thru VII of the Modified Mercali Intensity Scale of 1931. SUBSTANTIATION: None included. COMMI"I'I'EE ACTION: Accept. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:

AFFIRMATIVE: 14 NEGATIVE: Bey NOT RETURNED: Everard, O'Connor

EXPLANATION OF NEGATIVE: BEY: The Modified Mercali Intensity Scale does not define seismic

risk areas. It is an arbitrary ranking of the intensity of earthquakes based on the observed effects as felt by people, surveyed by mail after an event.

(Log #7) 110-5- (2-2 (New)): Accept SUBMITTER: Charles R. McDonald, McDonald Equipment Company RECOMMENDATION: Add the following definitions:

Tank, Day. A fuel tank, located inside a structure, that provides fuel to the engine.

Tank, Enclosed. A fuel tank, located within a separate room, separated from other equipment.

Tank, Integral. A fuel tank furnished by the manufacturer and mounted on the engine.

Tank, Main Fuel. A separate, main fuel tank for supplying fuel to the engine or the a day tank. Also referred to as t he ' Main Fuel Reservoir". SUBSTANTIATION: Definition is needed to define various types of tanks.. COMMI'Iq'EE ACTION: Accept. NUMBER OF COMMrITEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:

AFFIRMATIVE: 15 NOT RETURNED: Everard, O'Connor

(Log #42) 110- 6 - (2-3.4.4): Accept in Principle SUBMITTER: Timothy G. Stillman, Fort Lauderdale, FL RECOMMENDATION: Delete last two sentences. SUBSTANTIATION: Requirements are needed in this standard for Level 3 use. COMMITTEE ACTION: Accept in Principle. Delete 9-3.4.4.

COMMITITEE STATEMENT: Reference to "levels" of emergency and standby systems not covered in document is not necessary. When requirements for other levels of systems are added, then a new "level" will be added. NUMBER OF COMMITI'EE MEMBER~ ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:

AFFIRMATIVE: 14 NEGATIVE: Stillman NOT RETURNED: Everard, O'Connor

EXPLANATION OF NEGATIVE: STILLMAN: I have felt since the inception of this Standard that it

should include all types of Standby Systems; and not just those that are "Legally Required." This is needed for field guidance of inspection personnel, many of whom are Fire Fighters rather than Electricians.

(Log #39) 110-.7- (2-3.4.5 (New)): Reject SUBMITTER: Timothy G, Stillman, Fort Lauderdale, FL RECOMMENDATION: Add new section to define Level 4:

2-3.4.5 Level 4 defines additional requirements for systems installed during major power outages (over 120 hours). SUBSTANTIATION: Hurricane "Andrew" experiences show that long term failures (over five months) are possible. The standard should reflect additional requirements for extended use. COMMITIqEE ACTION: Reject.

935

NFPA 110 w F95 ROP

COMMITrEE STATEMENT: Committee interprets the level of systems referred to as "temporary" and covered by NFPA 70, National Electrical Code. NUMBER OF COMMITrEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMrlTEE ACTION: AFFIRMATIVE: 14 NEGATIVE: Stillman NOT RETURNED: Everard, O'Connor

EXPLANATION OF NEGATIVE: STILLMAN: For the same reasons as Proposal 110-6 (Log #42),

with which it should be paired.

(~g#57) 110- 8 - (3-1.1 (d)): Accept in Prindple SUBMITTER: Gordon Johnson, Dundee, FL RECOMMENDATION: Delete (d) SUBSTANTIATION: Stored energy systems have been moved to NFPA 111. COMMITTEE ACTION: Accept in Principle.

1. Accept submitter's recommendation to delete subparagraph (d). 2. Delete Table A-6-4.1(b). 3. In Table A-64.1 (c), delete Section II.

COMMITTEE STATEMENT: Items 2 and 3 are related to stored electrical energy systems, and are included in NFPA 111. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:


(Log #58) 110- 9 - (3-2.1): Accept SUBMITTER: Gordon Johnson, Dundee, FL RECOMMENDATION: Revised text as follows: Reword first sentence to read, "Energy converters shall consist only

of rotadng equipment as indicated in 3-2.2." SUBSTANTIATION: Stored energy sources have been moved tO NFPA 111. COMMITTEE ACTION: Accept. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:


(Log #59) 110- 10 - (3-2.3): Accept SUBM1TTER: Gordon Johnson, Dundee, FL RECOMMENDATION: Delete entire section. SUBSTANTIATION: Stored energy systems have been moved to NFPA 110. COMMITTEE ACTION: Accept. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:

AFFIRMATIVE: 15 NOT RETURNED:, Everard, O'Connor

(Log #26) 110-11 - (3-3.1): Accept SUBMITrER: Jim McDowall, Alcad Inc. RECOMMENDATION: Revise the third sentence. Inserted text shown underlined, deleted text in tm'iket~'e.

"Provision shall be made for outdoor housed units to maintain the energy converted enclosure at not less than 32°F (0°C) or o~p.r_OM_~i~ shall be made for low temoerature battery ooeration, either bv the use of batterv heaters, or. in the case of nickel-cadmium battei-ies, bv sizing for the lowest exnected temperature. Battery heaters shall b~ t.~6-.Tdc,1 ~.. maintain battery teml~erature at a minimum of 50°F (10°C) and shall automatically shut off when the battery temperature attains 90°F (32°C). SUBSTANTIATION: The life and reliability of most heater systems, while satisfactory for typical lead acid starter batteries, are not compatible with nickel-cadmium batteries. Users pay much more for Ni-Cd batteries to improve reliability; that reliability should not be

compromised by making overall system operation dependent on a short-life heater assembly. COMMITFEE ACTION: Accept. Reference should be to fourth sentence.

COMMITrEE STATEMENT: Editorial. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:

AFFIRMATIVE: 14 NEGATIVE: DeLemo NOT RETURNED: Everard, O'Connor

EXPLANATION OF NEGATIVE: DELERNO: Nowhere in NFPA 110 is the use of Ni-Cd batteries

mandated. Such being so, why should Ni-Cd batteries be required to perform under greater adverse conditions than other batteries? An appendix item suggesting wisdom of not using heaters is appropriate; prohibiting same is beyond minimum requirements.

(Log #32) 110- 12 - (3-3.1): Accept SUBMITTER: Lawrence A~ Bey, Onan Corp RECOMMENDATION: Revise second sentence to read:

"When an engine water jacket heater is required, it shall maintain sutticientjacket water temperature for the energy converter to accept nameplate load within the time permitted for the type EPSS as defined in 2-3.2."

Delete the third sentence. SUBSTANTIATION: To change to performance specifications. The actual temperature of the engine jacket shouldbe whatever it takes, indoor or outdoor, for the equipment to perform, i.e., start and accept nameplate load, since the Level 1 load could be equal to nameplate kw. This would make sure that the generator set has reserve capacity to accept load up to the nameplate rating of the set. Ninety (90 °) F may not be sufficient to start and accept load and the standard should not assign a specific temperature. No where else in NFPA 110 is load acceptance performance required from a cold start with heaters functioning. The same performance should be required regardless of the unit being indoors or outdoors. COMMITrEE ACTION: Accept. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:


(Log #27) 110- 13 - (3-3.1 Exception No. 3 (New)): Reject $UBMITTER: Jim McDowall, Alcad Inc. RECOMMENIIATION: Add new text as follows: Exception No. 3: Nickel-cadmium batteries shall be used without

heaters and shall be sized to operate at the lowest expected temperature. SUBSTANTIATION: The life and reliability of most heater systems, while satisfactory for typical lead acid starter batteries, are not compatible with nickel-cadmium batteries. Users pay much more for Ni-C~ batteries to improve reliability;, that reliability should not be compromised by making overall system operation dependent on a short-life heater assembly. COMMITTEE ACTION: Reject. COMMITrEE STATEMENT: Action of accepting Proposal 110-11 (Log #26) covers this issue, and makes Exception unnecessary. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMrI'rEE ACTION:


(Log #47) 110- 14- (3-4.1): Accept SUBMITTER: Gordon Johnson, Dundee, FL RECOMMENDATION: Change reference in last line to 2-3.2. SUBSTANTIATION: Correction - Times are not in 2-3.1. COMMITTEE ACTION: Accept. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION: AFFIRMATIVE: 15 NOT RETURNED: Everard, O'Connor

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N F P A 1 1 0 ~ F 9 5 R O P

110- 15- (3-4.1): Reject (Log #60) SUBMITTER: Gordon Johnson, Dundee, FL RECOMMENDATION: Add:

"The connected load shall be reviewed annually to de termine that the energy converter is still adequate. SUBSTANTIATION: To avoid situations where the load outgrows the system. COMMITI"EE ACTION: Reject. COMMITTEE STATEMENT: Requirement would be redundant since paragraphs 6-4.1 and 6-4.2 require monthly testing undet~ load. Waiting annually to review connected load and the adequacy of the energy converter is not considered a reasonable time frame. See also Committee Proposal 110-16 (Log #CP1 ) which addresses

this concern. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:

AFFIRMATIVE: 14 NEGATIVE: DeLerno NOT RETURNED: Everard, O 'Connor

EXPLANATION OF NEGATIVE: DELERNO: I disagree with rationale for rejection; Committee

should accept this proposal. Paragraphs 6-4.1 and 6-4.2 can be met without overloading the EPS yet the EPS could be overloaded were 100 percent of connected load present. Proposal 110-16 is not a mandate.

(Log #CP1 ) 110- 16- (3-4.1 Note): Accept SUBMITTER: Technical Committee on Emergency Power Supplies, RECOMMENDATION: Add following new NOTE:

NOTE: The load should be reviewed to ascertain that load growth has not exceeded EPS capability. SUBSTANTIATION: Call at tent ion to the problem of loads growing and overloading the capability of the EPS. COMI~TrEE ACTION: Accept. NUMBER OF COMMITIXE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:

AFFIRMATIVE: 15 NOT RETURNED: Evecard, O 'Connor

(Log #40) 110- 17 - (3-4.2.4 (New)): Accept in Principle SUBMITTER: Timothy G. Stillman, Fort Lauderdale, FL RECOMMENDATION: Add new section as follows:

3-4.2.4 When the EPSS is located in a f lood or hurricane zone, fuel supplies shall be adequate for full load operation for at least 120 hours. SUBSTANTIATION: Power interruptions often include interruption of fuel delivery systems. (Snow levels, blocked roads, insuffi- cient supply vehicles, inability of driver, to reach vehicles a n d / o r fuel depots, etc.) COMMITTEE ACTION: Accept in Principle. Add a new NOTE to 3-4.2.3 to read as follows: NOTE: Prudent disaster management may require much larger on-

site temporary or pe rmanen t fuel storage. COMMITrEE STATEMENT: Specifying a particular number is very site and application specific. Committee does agree on the need for facilities to carefully consider fuel supply needs, and is adding NOTE in view of the many recent natural disasters and the failure o f systems doe to the lack of sufficient fuel. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:

AFFIRMATIVE: 15 NOT RETURNED: Everard, O 'Connor

(Log #4) 110-18 - (3-5.4.4): Accept in Principle SUBMITTER: Keith E. Mathenia, ccrd partners RECOMMENDATION: Revise wording as follows:

3-5.4.4.* Size of Batteries. The battery uni t shall have the capacity to maintain the cranking speed r ecommended by the prime mover manufacturer through three (3) complete periods of cranking cycles specified in Table 3-5.4. SUBSTANTIATION: Section 3-5.4.2 describes one (1) cranking cycle as 15 seconds on and 15 seconds of f for a cycle crank start. Section 3-5.4.4 now requires the two (2) complete cranking cycles

(i.e., 15 seconds on, 15 seconds off, 15 seconds on, 15 seconds off= 60 seconds). However, Table 3-5.4 requires a 75 second cycle crank cranking time limiter. This would be consistent with three (3) complete.cranking cycles (i.e., 15 seconds on, 15 seconds off, 15 seconds, on, 15 seconds off, 15 seconds on, engines shutdown due to overcranking = 75 seconds ). Also, most engine generator manufacturers I am aware of expect to size their batteries for three (3) cranking cycles, no t two (2) cranking cycles. COMMITrEE ACTION: Accept in Principle.

1. In Table 3-5.4: i tem (c): Revise to read "Cycle Cranking (See 3-5.4.2 text)" item (d): Revise "cycle crank" to read: "cycle crank (3 cycles)" item (g): Change "Contracts" to read: "Contacts"

2. In 3-5.4.4: Revise "two complete periods of cranking cycles specified in Table 3-5.4" to read: "two complete periods of cranking limiter time-outs as specified in Table 3-5.4(d)."

3. Add new Appendix A-3-5.4 Diagram of cranking cycles.

I ,ii cranking limit time-out > ]

crank cycle ~[

I l s ' ~ " I l s s ~ I lssec" I ~ss''" I l s ' ~ " I 'sse°" I

crank rest crank rest crank rest

COMMITI"EE STATEMENT: Committee agrees with submitter 's concern as to time and number of cranks necessary. Committee is unsure of submitter 's intent of total cranking time, and has modified 3-5.4 as noted. Committee also includes a diagram to help readers unders tand times involved. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:

AFFIRMATIVE: 14 NEGATIVE: Bey NOT RETURNED: Everard, O 'Connor

EXPLANATION OF NEGATIVE: BEY: Committee action item #2 should read "until one cranking

limit time out." The probable intent was to provide 2-1/2 cranking cycles which is one cranking limit, no t two.

(Log #l 7) 110~ 19 - (3-5.4.5): Accept in Principle SUBMITTER: A. Dan C~isholm, Motor and Generator Institute RECOMMENDATION: Add new paragraph to read as follows:

"Starting batteries for level 1 installations shall not be of the maintenance free variety". SUBSTANTIATION: It is impossible to check the true condition of maintenance free battery because you cannot check the specific gravity. In addition, the requirements imposed by paragraph 6-3.6 of NFPA 110 cannot be accomplished unless specific gravity is checked.

- COMMITrEE ACTION: Accept in Principle. 1. Accept submitter 's recommendat ion. 2..Revise sentence 2 by deleting "or valve-regulated (sealed)" 3. Delete Exception at end of 3-5.4.5. 4. Delete '~alve regulated (sealed)" wherever it appears in

document . COMMITI"EE STATEMENT: In accepting submitter 's recommen- clarion, the use of valve-regulated (sealed) batteries is no longer acceptable; thus, the need to make modifications as no ted in items 2 to 4. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:


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(Log #34) 110- 20 - (3-5.5.2(c)): Reject SUBMITTER: Lawrence A. Bey, Onan Corp RECOMMENDATION: Add a new sentence:

"An automatic engine shutdown device for high lubricating oil temperature shall not be required." SUBSTANTIATION: NFPA 37 requires a high lubricatingoil temperature shutdown on engines 100 HP or more. T heh igh coolant temperature or low oil pressure shutdowns will shut down the engine before high lube oil temperature is reached. High lube oil temperature is therefore a secondary device and is not provided by most engine manufacturers. COMMITFEE ACTION: Reject. COMMITTEE STATEMENT: Committee agrees with submitter's concern. However, standards generally do not list items that are not required unless safety is involved. Committee is unaware of need for an alarm for high lubricating oil temperature for engines used for emergency power with the exception of turbines and large slow- speeddieselengines.

Committee plans to communicate this issue to the T/C on Internal Combustion Engines, which is responsible for NFPA 37. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:

AFFIRMATIVE: 14 ABSTENTION: Stillman NOT RETURNED: Everard, O 'Connor

EXPLANATION OF ABSTENTION: STILLMAN: I feel that EACH Standard should stand alone, and

that the second sentence of the Committee Statement is sufficient reason for the adoption of the Proposal. Additionally, many (the majority) of Standby Power Installations are NOT within buildings and outside the Jurisdiction of NFPA 37 (Sewage Lift Stations, for example).

(Log #33) 110- 21 - (Table 3-5.5.2(d)): Reject SUBMITTER: Lawrence A. Bey, Onan Corp RECOMMENDATION: Revise as follows:

1. Delete item (k) Battery Charger Malfunctioning. 2. Add new item: "High Battery Voltage"

SUBSTANTIATION: A buttery charger malfunction is not defined, but could be indi, cated by either low or high battery voltage. COMMrrFEE ACTION: Reject. COMMITTEE STATEMENT: Recommendation would limit the number of ways that charger could be deemed to be malfunctioning. Committee is aware that there are other ways to determine battery malfunctioning other than by high voltage. NUMBER OF COMMITTEE MI~BERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITrEE ACTION:


EXPLANATION OF NEGATIVE: BEY: This proposal was intended to address the interpretation

request from W. G. Mitchell, Chairman of the CSA 282 committee, dated 12/14/1990. His request for clarification of the intent is still needed, battery charger malfunction remains undefined. High and low battery voltage supervision should cover all battery charger malfunctions, including AC power failure to the charger.

NOTE: Supporting material is available for review at NFPA Headquarters.

(Log #36) 110- 22- (Table 3-5.5.2(d)): Reject SUBMITrER: Lawrence A. Bey, Onan Corp RECOMMENDATION: Add appendix A-333.5.2(d) to read as follows:

"In Table 3-5.5.2(d) Item (j) also applies whenever automatic synchronizing controls are switched OFF in multiple paralleled unit installations." S ~ A N T I A T I O N : With the local switch in RUN the generator set in paralleled systems will not automatically synchronize and close its paralleling breaker. COMMITTEE ACTION: Reject. COMMITTEE STATEMENT: There are multiple controls on a multiple generator system that will prevent the system from operating properly, It is the responsibility of the owner/operator to protect and insure that these controls are kept in the appropriate setting. Only authorized persons-should have access to the control panel.

NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMrIWEE ACTION:

AFFIRMATIVE: 14 NEGATIVE: McDonald NOT RETURNED: Everard, O'Connor

EXPLANATION OF NEGATIVE: MCDONALD: I agree with submitter that automatic synchronizing

controls (which are frequently physically located remote from the EPS) should be monitored against inadvertently being left in the "off" position.

(Log #CP2) 110- 23 - (Table 3-5.5.2(d)): Accept SUBMITTER: Technical Committee on Emergency Power Supplies, RECOMMENDATION: Revise title "NOTES" to read:

"Additional requirements to Table 3-5.5.2(d)" SUBSTANTIATION: Conform to NFPA Style Manual. Items in NOTE are not recommendations, but are requirements. COMMITTEE A .C~ON: Accept. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:


(Log #29) 110- 24- (Table 3-5.5.2(d) Note 6 (New)): Accept in Principle SUBMITTER: Lawrence A. Bey, Onan Corp RECOMMENDATION: Add a new note:

Note 6: Item (h) shall not be required on gas supplies. Provide a low pressure alarm. SUI~TANTIATION: Fuel level cannot be indicated on a gas pipe. A low pressure alarm (pressure below manufacturers specifications) shouldbe provided when pressure is too low for full load operation. If the gas line is turned OFF, an alarm should sound. COMMITTEE ACTION: Accept in Principle. Add new NOTE 6 to read as follows: "6. Item (h) on gaseous systems shall require a low gas pressure

alarm." COMMITTEE STATEMENT: Reword is for clarity only. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:

AFFIRMATIVE: 15 NOT RETLrRNED: Evecard, O'Connor

(Log #61) 110- 25 - (3-5.5.2(g) (New)): Reject SUBMITTE~ Gordon Johnson, Dundee, FL RECOMMENDATION: New text as follows:

The high lubricating oil temperature shutdown required by NFPA 37 for engines over 100 HP shall not be required for the EPS. SUIk~ANTIATION: High lubricating oil temperature shutdown might shut the EPS down when if it continued to operate risk to the engine would be more tolerable than the risk to life safety. C O ~ ACTION: Reject. COMMITTEE STATEMENT: Issue is the same as in Proposal 110-20 (Log #M), and is thus rejected for the same reasons. NUMBER OFCOMMIT'IT.E MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMEffrEE ACTION:


EXPLANATION OF NEGATIVE: BEY: The substantiation for this proposal makes a valid reliability

point that should be addressed. NFPA $7 is general to all engines, while NFPA 110 is specific to engines used for emergency power. The proper place for this exception item is in NFPA 110.

(Log #48) 110- 26 - (3-5.6.1.1): Reject SUBMITrER: Vie D. Humm, Vie Humm & Associates RECOMMENDATION: Add new paragraph and renumber succeeding paragraphs. Text to read: "If an emergency or standby power system is utilized to supply

standby energy for the building fire alarm systems. Then the following signals shall be monitored by.the building fire alarm system as a supervisory alarm as outlined in NFPA 72, 1993 edition:

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N F P A 1 1 0 - - F 9 5 R O P

(a) Generator Switch in a position other than automatic; (b) Generator Running; (c) Generator Trouble; (d) Transfer Switch Status; (e) Low fuel."

SUBSTANTIATION: NFPA Life Safety Systems require fire pumps to be moni tored as outl ined in NFPA 20 for Fire Pumps and NFPA 72. A building emergency power supply should be considered with equal priority. COMMITTEE ACTION: Reject. COMMITTEE STATEMENT: NFPA 110 already requires a monitoring system, per 3-5.5.2(d). It is outside the scope of this committee to add requirements for monitoring of these signals by NFPA 72.

Signals are available that can be utilized by NFPA 72, if that committee so chooses to include them in its document . NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:


(Log #62) 110- 27 - (3-5.7.23): Accept in Principle SUBMI'I']['ER: Gordon Johnson, Dundee, FL RECOMMENDATION: Modify second paragraph to add "and heat exchangers" after radiator. Delete third paragraph. SUBSTANTIATION: The third paragraph was not clear and not needed with the change to the second paragraph. COMMITTEE ACTION: Accept in Principle.

1. Insert "and heat exchangers" after "remote radiators" in paragraph 2 as r ecommended by submitter.

2. Revise paragraph 23 by deleting everything after "(i.e., recycling of cooling agen t s ) . . . " COMMITrEE STATEMENT: Text of. paragra, ph 23 that is retained, is considered necessary because committee beheves secondary stde of heat exchanger needs to be closed-loop because of the unreliability of external cooling sources. (See also paragraph 5-8.2 of document.) NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 1 7 VOTE ON COMMITTEE ACTION:


(Log #37) 110- 28 - (4-2.4.9 Exception No. 2 (New)): Reject SUBMITrER: Lawrence 2L Bey, Onan Corp RECOMMENDATION: Add a second exception:

"A program timing device shall no t be required in health care facilities with scheduled testing in accordance with NFPA 99." SUBSTANTIATION: An automatic t imer can cause a problem in hospitals when the doctors are not aware or advised of the exercise/ test period. COMMITTEE ACTION: Reject. COMMITTEE STATEMENT: A timer is considered necessary to assure that generator is started and tested. Nothing in the standard precludes facilities, including health care facilities, f rom testing a generator manually at any time desired to meet needs of that facility and its occupants.

Intervals o f testing Level 1 systems are listed in section 6-4. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:

AFFIRMATIVE: 14 NEGATIVE: Smidt NOT RETURNED: Everard, O 'Connor

EXPLANATION OF NEGATIVE: SMIDT: I agree with the submitters intent to remove the automatic

run timers currendy required on hospital generator sets. The timer runs only the generator set and places no load on the generator. The manufacturer representatives to NFPA 1 10 have repeatedly expressed their concerns about running generators unloaded, thus causing carbon build up in the machine.

The timer device if installed in a hospital will be disabled by most facilities. This leaves a device in the circuitry that is unnecessary and a possible point for future failure and potentially can cause confusion in trouble shooting the EPS.

(Log #2) 110- 29 - (4-5.1): Reject SUBMI'I 'I~R: Hugh O. Nash,Jr. , Smith Seckrnan Reid, Inc. RECOMMENDATION: Delete 4-5.1 text entirely. Add FPN after 4-5.2 as follows:

FPN: Within the constraints of the equipment provided, consideration should be given to coordinating circuit breakers, fuses, and other overcurrent protective devices so that power interruption in that part of the circuit that proceeds the in terrupt ingdevice closest to a fault is no t likely to occur. The maximum available short-circuit current from both the utility source and the emergency energy source shall be considered. SUBSTANTIATION: The cost of providing 100% coordinated electrical system is prohibitive. It is impossible to coordinate circuit breakers with instantaneous trip features. It is also difficult (and sometimes impossible) to coordinate current limiting fuses with downstream molded case circuit breakers. In order to satisfy this requirement for 100% coordinated systems, the designer would have to use a 100% fused system with 2:1 or 3:1 ratios (in the sizes of successive fuses) or expensive low voltage power circuit breakers or solid state circuit breakers that utilize a short time trip instead of an instantaneous trip. Such designs are expensive, impractical, and can sometimes compromise equipment protection. Coordination is.an art and not a science. It is a trade-off between selectivity and equipment protection, and should be left up to the judgrnent of the design engineer. Few, ffany, hospitals in the United States presendy have 100%coordinated electrical systems. COMMITrEE ACTION: Reject. COMMIq[TEE STATEMENT: Word change in Proposal 110-30 (Log #63) is considered to address the issue of circuit breakers beyond the load side of the transfer switch, which is the extent of this committee 's scope. NUMBER OF COMMITrEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:


(Log #63) 110- 30 - (4-5.1): Accept SUBMITTER: Gordon Johnson, Dundee, FL RECOMMENDATION: Delete text after shall in second line and replace with "be suitable for coordinating with down-stream devices." SUBSTANTIATION: Coordination is desirable, but the scope of NFPA 110 does not apply beyond the transfer switch. Some government hospital agencies are requiring complete coordination on both emergency and normal sources to as many as five levels, based upon 4-5.1. Much time and money is wasted on theoretical coordination plotting that most engineers doubt will function in

actice- MMITI~E ACTION: Accept.

NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:

AFFIRMATIVE: 14 NEGATIVE: Bey NOT RETURNED: Everard, O 'Connor

EXPLANATION OF NEGATIVE: BEY: Lets not throw the baby out with the bath waterl While it is

true that 100 percent selective coordinat ion is difficult to achieve particularly with thermal-magnetic molded case circuit breakers, it still should be the objective to achieve the highest practical level of coordination possible, regardless of the type of OCD used. The wording of Proposal 110-30 does not have much meaning since all overcurrent devices may be suitable for coordinating with downstream devices, and the design engineer would not be required to try to achieve coordination even with some degree of compromise. The type of c o m p r o m i ~ I 'm talking about using circuit breakers with instantaneous tr ipsis explained by Figure 118 from the IEEE Buff book.

The subrnitter's. . po im a b o u t , the scope of NFPA 110 ending at the transfer switch is vahd, however there may be several levels o f overcurrent protection with the EPSS distribution, so requirements in NFPA 1 I0 are appropriate. A second point about the substantiation is that the complete coordination on both emergency and normal sources in hospitals is the present requirement of NFPA 99, 3-4.1.2.1 (d) (1).

i suggest that the present wording of 4-5.1 be retained, changing only one word "ensure" to "optimize" in the first sentence.

Secondly, an appendix explanation should be added (sirtiilar to Proposal 110-67), my suggestion would be as follows:

"The design objective should be selective coordination for all levels of available short-circuit current. However, the intent is no t to rule out the use of overcurrent devices with instantaneous magnedc trips.

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If devices with instantaneous trips are to be used, the short-circuit study should show reasonably minimal, in the design engineer's judgment, overlap or mis<oordination between devices. In these types of OCDs, selectivity ispossible where the available short-circuit current at a downstream OCD does not exceed the instantaneous setting of the next OCD upstream. Refer to ANSI/IEEE 242 for further information."

There may be a need for some correlation between NFPA 110 and 99 on this last point of selective coordination.

NOTE: Supporting material is available for review at NFPA Headquarters.

(Log #1) 110- 31 - (5-2.1): Accept SUBMITI'ER: Hugh O. Nash,Jr., Smith Seckman Reid, Inc. RECOMMENDATION: Change last sentence in 5-2.1 to read:

Rooms for Level 1 EPS shall not be shared with other equipment or electrical service equipment not a part of the EPSS. Note that the new (proposed) word EPS is underlined.

SUBSTANTIATION: As presently written, the code can be interpreted as prohibiting the installation of normal system electrical equipment in rooms having automatic transfer switches. It is customary to install the EPS in one room and the normal distribution equipment and ATS in a second room together. I do not believe it is the intent of NFPA 110 to prohibit this. COMMITTEE ACTION: Accept. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITFEE ACTION:


(Log #9) 110. 32 - (5-2.1): Reject SUBMITrER: Charles IL McDonald, McDonald Equipment Company RECOMMENDATION: Change last sentence to read: The room(s) for Level 1 energy convertors shall not be shared... SUBSTANTIATION: To clarify committee intent. COMM/TrEE ACTION: Reject. COMMITTEE STATEMENT: See Committee Action on Proposal 110-31 (Log#l) , which addresses same issue. "EPS" terminology is used throughout document, and is thus accepted. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TOVOTE: 17 VOTE ON COMMITTEE ACTION:


(Log #28) 110- 33 - (5-2.1): Reject SUBMITTER: Lawrence A. Bey, Onan Corp RECOMMENDATION: Delete:

"separated from the remainder of the building by fire separations having a minimum~co-hour fire rating." SUBSTANTIATION: NFPA 110 does not state exactly the type of construction required to achieve 2-hour rating, or refer to another NFPA standard that does. The problem is protection of the openings required for ventilation for the engine to run under emergency situations, including fire. Presumably the intent was to t~rotect against fires outside of the generator set room, otherwise

ere would be no difference between Level 1 and Level 2. But how can the rating be achieved given the larger volume of ventilation air that must be run through the room. If antomaticd~re dampers are used, protection of the openings could be achieved for a fire inside the generator set room, but again the unit would shut down. COMMITTEE ACTION: Reject. COMMITTEE STATEMENT: Committee believes that EPS needs to be separated from rest of building by a specified fire separation. Two-hour rating is a defined term in NFPA "220, Standard Types of Building. Construction . .Requirements for. ventilation o~p enin gs are covered m NFPA 101, Life Safety Code, if theyare on the interior of the building. NUMBER OF COMMI'IWEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMIITEE ACTION:


(Log #35) 110. 34 - (5-2.1): Reject SUBMITrER: Lawrence A. Bey, Onan Corp RECOMMENDATION: Revise the last sentence to read:

"The room for a Level 1 EPS shall not be shared with other equipment or electrical service equipment not a part of the EPSS." [ changes underlined] SUBSTANTIATION: As presently written this sentence has been interpreted to mean that dedicated room must be provided for transfer switches and emergency distribution pbsaels. COMMITTEE ACTION: Reject. COMMITI'EE STATEMENT: See Proposal 110-31 (Log #1), which covered this issue, and made this change. NUMBER OF COMMFIrrEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMrrrEE ACTION:


(Log #55) 110. 35 - (5.2.1): Reject $UBMITTER: Gordon Johnson, Dundee, FL RECOMMENDATION: Add to the first sentence, "and resisting wind velocity of 150 mph."

Modify the last sentence to read, "Rooms for level 1 EPS shall not be shared with other equipment or electrical service equipment not a part of the EPSS, except for fire suppression systems." SUBSTANTIATION: Authorities in Florida have become con- " cerned about the ability of generator set enclosures to withstand hurricane force winds. The NFPA 110 committee has approved a sprinkling system main

passing through a room for an EPS. COMMITrEEACTION: Reject. COMMITTEE STATEMENT: 1. For item 1 of recommendation, committee is not confident that enclosures can be built to meet this recommendation.

2. For half of item 2, see committee action on Proposal 110-31 (Log #1) (on adding reference to 'EPS'). For second half of item 2 (on adding reference to fire suppression systems), committee issued a formal interpretation concerning the issue of water mains (passing through room containing an EPS) being considered "other equipment." The committee voted that it was not "equipment." Thus, it is not considered necessary to add reference to fire suppression systems. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: .17 VOTE ON COMMITTEE ACTION:

AFFIRMATIVE: 14 NEGATIVE: Stillman NOT RETURNED: Everard, O'Connor

EXPLANATION OF NEGATIVE: STILLMAN: Enclosures CAN, and HAVE, been built to withstand

hurricane force winds.

(Log #3) 110. 36 - (5.2.1 Exception (New)): Reject SUBMITTER: M.J. DeLerno, Bera~cyn, IL RECOMMENDATION: Add an exception to read: Level 1 rooms shall be permitted to house equipment served by the EPSS. SUBSTANTIATION: A portion (or all) of the EPSS isprovided to serve specific loads. To mandate separation of source from the served equipment is unnecessary. COMMFITEE ACTION: Reject. COMMITTEE STATEMENT: Committee believes that the recommendation is too broad, and would allow a wide variety of equipment to be housed in the same room with the EPS that would compromise the intent of 5-2.1 (i.e., reduce the integrity of the system by having equipment that, if failed, would cause EPS to fail or malfunction). NUMBER OF COMMIT1T~ MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:


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N F P A 1 1 0 - - F 9 5 R O P

(Log #44) 110- 37 - (5-2.3(a)): Accept in Principle SUBMITTER: Timothy G. Stillman, Fort Lauderdale, FL RECOMMENDATION: Add:

"And not below the elevations projected for the "100 year storm" flooding level or the flooding level, predicted by the SLOSH models for a Class 4 hurricane." SUBSTANTIATION: Specific data is available for determining flooding levels and should be referenced in the standard.

This data is available from local government emergency planning agencies (FEMA). COMMIITEE ACTION: Accept in Principle. Add newAppendix A-5-2.3(a) to read: A-5-2.3(a): Design considerations should be given to the "100 year

storm" flooding level or the flooding level predicted by the SLOSH models for a Class 4 hurricane." COMMITTEE STATEMENT: Current text covers the subject of considering flooding and hurricanes when locating systems. Recommendations are useful, and are thus included in the appendix as assistance in meeting the current requirements. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITI'EE ACTION: AFFIRMATIVE: 15 NOT RETURNED: Everard, O'Connor

VOTE ON COMMITTEE ACTION: AFFIRMATIVE: 15 NOT RETURNED: Everard, O'Connor

(Log #50) 110- 41 - (5-8.2): Reject SUBMITTER: Gordon Johnson, Dundee, FL RECOMMENDATION: Revise text as follows:

In the first sentence, replace "city" with external. SUBSTANTIATION: To correct the possible interpretation that city water supply is acceptable. COMMITTEE ACTION: Reject. COMMITTEE STATEMENT: See Committee Action on' Proposal 110-40 (Log #11) because that proposal clarified the entire issue of methods of cooling. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:


(Log #10) 110- 38 - (5-2.4): Accept SUBMITTER: Charles IL McDonald, McDonald Equipment Company RECOMMENDATION: Change sentence to read:

...and adequate (minimum of 30 inches) working space... SUBSTANTIATION: To define "adequate". COMMII"TEE ACTION: Accept. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:

AFFIRMATIVE:. 15 NOT RETURNED: Everard, O'Connor

(Log #49) 110- 39 - (5-2.4): Reject SUBMITTERa Gordon Johnson, Dundee, FL RECOMMENDATION: Add "See NFPA 70 section 110-34". SUBSTANTIATION: NFPA 70 is the primary document for working space around electrical equipment. COMMI'['rEE ACTION: Reject. COMMY[q'EE STATEMENT: Section cited in NFPA 70 does not clearly refer to needs of servicing an EPS. See also Committee Action on Proposal 110-38 (Log #10). NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE Ac'rION:

AFFIRMATIVE: 15 NOT RETURNED: Everard, O'Connor '

(Log #11) 110- 40 - (5-8.2): Accept in Principle SUBMITTE. Ra Charles R. McDonald, McDonald Equipment Company RECOMMENDATION: Revise text as follows:

Typical methods of cooling the energy convertor(s) consist of radiator cooling, either unit mounted or remote, utility furnished (city) water cooling, heat exchangers and air cooling. On EPSS cooling systems requiring intermittent or continuous water flow,

~ ressure or both, a utility, city or other water supply service shall not e nseck It shall be allowable to use udlity or city water for filling or

makeup water. SUBSTANTIATION: To clarify committee intent. COMMITI'EE ACTION: Accept in Principle.

1. In submitter's recommendation, change sentence 1 to a NOTE. Also, delete first word "Typical."

2. In submitter's sentence 3, change "allowable" to "permitted." COMMITTEE STATEMENT: 1. Conform to NFPA style Manual for informatory text. Deletion of word "Typical" is to indicate there are other methods of cooling. 2. Conform to NFPA Style Manual.

NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17

(Log #31) 1t0- 42 - (5-9.2): Accept in Prindple SUBMITTER: Lawrence A~ Bey, t h a n Corp RECOMMENDATION: Delete the last~entence. Add: "The engine manufacturer's fuel pump static head pressure limits

shall not be exceeded when the level of fuel in the tank is at a maximum, or a day tank shall be utilized." SUBSTANTIATION: Fuel tanks should be permitted to be located anywhere within the maximum lift and the maximum static head pressure limit of the engine fuel pump. The last sentence has been read to mean that overhead fuel supply is not permitted. NFPA 20 requires an overhead supply for diesel engine driven fire pumps. COMMITTEE ACTION: Accept in Principle. Revise submitter's recommendation to read: "If the engine manufacturer's fuel pump static head pressure limits

are exceeded when the level of Bael in the tank is at a maximum, a day tank shall be utilized." COMMI'ITEE STATEMENT: Editorial; for clarity. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION: 9,FFIRMATIVE: 15 NOT RETURNED: Everard, O'Connor

110- 43 - (5-9.5): Reject (Log #51) SUBMITTER: GordonJohnson, Dundee, FL RECOMMENDATION: Delete entire paragraph, SUBSTANTIATION: Covered in NFPA 37. COMMITrEE ACTION: Reject. COMMrFI'EE STATEMENT: Text is an extract from NFPA 37. See Proposal 110-44 (Log #CP4). NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:


(Log #CP4) 110- 44 - (5-9.5): Accept SUBMITTER: Technical Committee on Emergency Power Supplies, RECOMMENDATION: Identify this paragraph as an extract from NFPA 37, Standard for Stationary Combustion Engines. SUBSTANTIATION: Conform to NFPA regulations governing extracted material. COMMITTEE ACTION: Accept. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:


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(Log #52) 110- 45 - (5-9.7 (New)): Accept in Principle SUBMITTER: Gordon Johnson, Dundee, FL RECOMMENDATION: New text as follows: Add new 5-9.7 and renumber following paragraphs. "The gas

supply to the EPS shall be connected ahead of the main shutoffvalve and shall be marked as supplying an emergency generator". SUBSTANTIATION: Firemen frequently shut off the gas supply to the building, leaving the EPS without fuel. COMMITrEEACTION: Accept in Principle. Add new 5-9.7 to read: "The gas supply to the EPS shall be marked as supplying an

emergency generator." COMMITrEE STATEMENT: Committee agrees with submitter's intent, but there are many types of fuel supply systems other than

~ I B E R OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMM1TrEE ACTION: AFFIRMATIVE: 12 NEGATIVE: Bey, Johnson, McDonald NOT RETURNED: Everard, O'Connor

EXPLANATION OF NEGATIVE: BEY: I agree with Johnson and McDonald, and McDonald's

suggested wording has my support. The NEC CMP 15 rejected a similar proposal (NFPA 70 - A95 ROP 15-137) because they felt it was within the scope of NFPA 110. The Sept./Oct. 1993 Fire Journal, Investigation Report of the Woburn Nursing Center Fire, reported that evacuation of residents was hampered due to lack of emergency lighting because the gas supply to the engine-generator was turned OFF. JOHNSON: The committee action and statement does not speak

to the main issue of firemen inadvertently turning off the fuel supply to the emergency generator when they, to avoid possibly feeding the fire, turn offthe gas supply to the building.

MCDONALD: The committee action should read: "The fuel supply to gas-fueled prime movers shall be connected ahead of the building's main shut-off valve and marked as supplying an emergency generator. The building's main gas shtu-offvalve shall be marked or tagged indicating the existence of the separate EPS shut- off valve." The committee statement doesn't make sense, but rather should

read: "Committee agrees with submitters intent, but safety consideration require dual tags to notify of the existence of the dual shut- offs. ~

(Log #30) 110- 46- (5-9.10 (New)): Reject SUBMrVrER: Lawrence A. Bey, Onan Corp RECOMMENDATION: Add a new paragraph 5-9.10:

Listed generator sub-base secondary containment fuel tanks 660 gal capacity and below shall be permitted to be installed outdoors or indoors without diking or remote impounding. A minimum of $ ft clearance shall be maintained on all sides. SUBSTANTIATION: Presently NFPA 110 does not address generator set sub-base fuel tanks. UL has begun listing generator sub-base tanks. Secondary containment tanks should not require diking or impounding. Outdoor ahoveground tanks presentlymnst comply with NFPA 30, which is not specific to tanks supplying engines. • • COMMITI~E ACTION: Reject. COMMITTEE STATEME~IT: Recommendation is the responsibility of the authority having jurisdiction. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:

AFFIRMATIVE: 13 NEGATIVE: McDonald ABSTENTION: Stillman NOT RETURNED: Everard, O'Connor

EXPLANATION OF NEGATIVE: MCDONALD: I agree with submitter. Underground storage tanks

have become a problem due to EPA requirements, while aboveground tanks require dikes or impounding and present a fire hazard. In view of this, secondary containment (dual-walled) fuel tanks have become available. NFPA 37 (6-3.2.3.1) allows up to a 660 gallon tank inside a building (for emergency purposes). Submitter is requesting specific exemption from a requirement to dike or otherwise impound this type of tank. EXPLANATfON OF ABSTENTION: STILLMAN: I see nothing wrong with this Proposal, the informa-

tion contained therein would serve as guidance to the Authority Having Jurisdiction.

110- 47 ~ (5-12.5): l(eject (Log #22) SUBMITTER: A. Dan Chisholm, Motor and Generator Institute RECOMMENDATION: Add new paragraph as follows:

"Battery charger output wiring shall be permanently connected at the electric starter solenoid and a nearby prime move ground. Wiringshall be shielded by a flexible non conductive conduit." SUIKgTANTIATION: Battery charger terminals and wiring can be broken and/or eaten away by corrosion that exists between battery terminals and battery starting cables. COMMITrEE ACTION: Reject. COMMITTEE STATEMENT: 1. Not all systems use electric starter solenoids.

2. Recommendations are design specific, and limits the ability of installers to use other acceptable methods. NUMBER OF COMMI .TTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMrlTEE ACTION:

AFFIRMATIVE: 14 NEGATIVE: Chisholm NOT R~'ruRNED: Everard, O'Connor

EXPLANATION OF NEGATIVE: CHISHOLM: Disagree with Committee Statement #1. This should

not be a reason to reject the recommendation. The recommendation could be changed where a parenthetical could be used such as "with exception of air starters." In regard to Committee Statement #2, in my opinion, there is no other acceptable method.

110- 48 - (5-12.6): Reject (Log #18). SUBMITTER: A. Dan Chisholm, Motor and Generator Institute RECOMMENDATION: Add new paragraph as follows: Starting batteries shall not be located under any device which is

capable of producing sparks such as transfer switches and battery chargers." SUBSTANTIATION: Since hydrogen is produced during the charging process of the batteries, a spark can ~'esult in explosions. COMMITrEE ACI'ION: Reject. COMMITTEE STATEMENT: 1. In manyinstallatlons, the starting batteries are located as close to the engine starter as possible.

2. Committee is unaware of hydrogen explosions in the vicinity of engine generators. No substantiation was included with proposal as to a problem. NLqVlBER OF COMMD'TEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:

AFFIRMATIVE: 13 NEGATIVE: Chisholm, Johnson NOT RETURNED: Everard, O'Connor

EXPLANATION OF NEGATIVE: CHISHOLM: In regard to Committee Statement #2, battery

explosions can be substantiated.

~I OHNSON: In the case Edward B. Hammel, et al. vs. Emerson ectric Co., et al., Columbus, Ohio, Mr. Hammel was severely

burned by an exploding battery adjacent to a generator set. The complaint was that the explosion was caused by a spark from the generator. The case was settled out of court in June of this year. While it is questionable that proximity to the generator caused this accident, it is very prudent to consider possible sparking when locating batteries.

CLog #sz) 110- 49 - (5-12.7): Accept SUBMITTER: Gordon Johnson, Dundee, FL RECOMMENDATION: Delete. SUBSTANTIATION: Out of scope. The EPSS does not include the distribution system. COMMrI'rEE ACTION: Accept. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION: AFFIRMATIVE: 14 NEGATIVE: McDonald NOT RETURNED: Everard, O'Connor

EXPLANATION OF NEGATIVE: MCDONALD: The paragraph reads "the electrical distribution

system of/he EPSS" (see Figure B-l) which includes wiring and/or circuit breakers which do include some distribution wiring which is within committee scope. The committee can and should require conformity to NFPA 70,

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N F P A 110 - - F 9 5 R O P

COMMENT ON AFFIRMATIVE: BEY: Agree with Commit tee Action but disagree with submit ters

substantiation.

(Log #12) 110- 50 - (5-13.2.30)): Accept SUBMITTERa Charles R. McDonald, McDonald Equ ipment Company

[ RECOMMENDATION: Change: 2-3.2 class to 2-3.3 class. SUBSTANTIATION: Correct error COMMITTEE ACTION: Accept. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:

AFFIRMATIVE: 15 N O T RETURNED: Everard, O ' C o n n o r

particularly with regard to the relationship of the namepla te rating and the 90 percen t criteria. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:

AFFIRMATIVE: 14 NEGATIVE: J o h n s o n NOT RETURNED: Everard, O ' C o n n o r

EXPLANATION OF NEGATIVE: JOHNSON: The 100 percent kW at 90 percent voltage Ls not a

practical requirement . How does the person making the test keep the load at 100 percent kW as the voltage increases to rated? ff tile in tent is for the load to be equivalent to 100 percen t kW at 100 percent voltage, the kW (resistance load) at 90 percent voltage would be 81 percent. If that is what is intended, the wording is no t correcL

(Log #CP6) 110- 51 - (5-13.2.4): Accept SUBMITTER: Technical Commit tee on Emergency Power Supplies, RECOMMENDATION: Insert after "to cool for" the following:

'% m i n i m u m of." SUBSTANTIATION: Clarify the length of t ime for cooling. COMMITTEE ACTION: Accept. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:

AFFIRMATIVE: 13 NEGATIVE: Bey, McDonald NOT RETURNED: Everard, O ' C o n n o r

EXPLANATION OF NEGATIVE: BEY: I agree with McDonald. MCDONALD: Commit tee action did no th ing to clarify the t ime

allowed in 5-13.2.4, which is very specific at 5 minutes . This t ime e lement was carefully selected to s imulate a EPS run u n d e r load, then re turn of normal power for a shor t (5 minute) durat ion, dur ing which the pr ime mover undergoes a condi t ion known as "after-boil," and if a second power outage occurs at tha t po in t in time, the EPS mus t restart and accept the load. While it is a difficult test, it can and f r equendy does occur that mult iple outages occur, requir ing the EPS to per form u n d e r these adverse conditions. I urge the commit tee to reverse this action.

(Log #38) 110- 52 - (5-t3.2.5): Accept SUBMITTER: Lawrence A. Bey, O n a n Cor~, RECOMMENDATION: Change "EPSS" to 'EPS" in last sentence. SUBSTANTIATION: Editorial. COMMITrEE ACTION~ Accept. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:


(Log #15) 110- 53 - (5-13.2.6): Accept in Principle SUBMITTER: Dennis Stubee, Florida Detroit Diesel-Allison RECOMMENDATION: Add the following new text:

At 10 seconds after initialization o f the start signal, genera tor voltage at the ou tpu t terminals shall be no less than 90% of rated voltage. SUBSTANTIATION: T he term "pickup" is inherent ly vague. Several manufac ture rs have resor ted to us ing 2V/her tz or adjustable V/he r t z regulators to allow the engine to recover. Unfor tunate ly the load is sacrificed; more voltage drop occurs allowing the engine to recover faster.

The National Electrical Code requires emergency generators to supply power to load within 10 seconds. COMMITrEE ACTION: Accept in Principle. Add the following to 5-13.2.6: "As a m in imum, for acceptance testing, the EPS shall be capa.ble of

accept ing 100 percen t of the namepla te KW at a m i n i m u m of 90 percent rated genera tor terminal voltage at 10 seconds after start initiation." COMMITrEE STATEMENT: Commit tee agrees with submit ter ' s in tent to def ine load pickup parameters . Rewording is for clarity,

(Log #41 ) 110- 54 - (5-14 (New)): Accept in Principle in Part SUBMITTER: Timothy G. Stillman, Fort Landerdale, FL RECOMMENDATION: Add new section 5-14:

"A manua l shutdown control shall be installed adjacent to the

~ r ime mover and accessible to a wheelchair." UBSTANTIATION: Outdoor (pad-mounted) and vehicle

m o u n t e d systems need accessible manua l shutdowns. COMMITrEE ACTION: Accept in Principle in Part.

1. Modify 3-5.5.6 by adding "and Level 2" after "Level 1." 2. Add a NOTE to 3-5.5.6 to read: "NOTE: For Level 1 and Level 2 systems located outdoors, the

manua l shutdown should located external to the weatherproof enclosure and appropriately identified." COMMITTEE STATEMENT: Revising 3-5.5.6 is considered to meet the in tent of proposal.

Reference to wheelchair accessibility is outside the scope of the committee. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:

AFFIRMATIVE: 15 NOT RETURNED: Everard, O ' C o n n o r

(Log #45) 110- 55 - (5-15 (New)): Accept in Principle SUBMITTER: Timothy G. Stillman, Fort Lauderdale, FL RECOMMENDATION: Add new section 5-15 Grounding:

"Pad m o u n t e d and vehicle m o u n t e d power supply systems shall be mechanical ly g rounded by an appropriate (at least 6 ft) g r o u n d rod." SUBSTANTIATION: Not covered in o ther standards, NFPA 70 or NFPA 37. Requi red for electrical safety and employee protection. COMMITrEEACTION: Accept in Principle.

Add new 3-2.4 to read: "3-2.4 The EPS shall be installed in accordance with NFPA 70,

National Electrical Code." COMMITTEE STATEMENT: Subject of g r o u n d i n g of Level 1 an d 2 systems is covered by NFPA 70. Adding a new 3-2.4 is considered to mee t the in tent of r ecommenda t ion . NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION-


(Log #19) 110- 56 - (6-3.5): Accept SUBMITTERa A. Dan Chisholm, Motor and Genera tor Instiutte RECOMMENDATION: Add parenthet ical as follows:

(See NFPA 70B) SUBSTANTIATION: The s tandards and me thods for testing Automatic Transfer Switches are unfor tunate ly very broad or non- existent. Adding NFPA 70B as a reference provides guidelines. COMMITrEE ACTION: Accept. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:


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N F P A 110 m F 9 5 R O P

(Log #13) 110- 57- (6-3.6): Accept SUBMITTER: Charles 1L McDonald, McDonald Equipment Corn p~any RECOMMENDATION: Change to read: ...section 700-4(c) SUBSTANTIATION: Update information to current NEC. COMMITTEE ACTION: Accept. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMM1TT .E.E ACTION:


(Log #23) l t0- 58 - (6-3.6): Accept in Principle SUBMITTER: A. Dan Chisholm, Motor And Generator Institute RECOMMENDATION: Add new sentence or paragraph as follows:

"Testing shall include checking specific gravity". SUBSTANTIATION: It is impossible to completely test a lead acid battery without checking the specific gravity. COMMITTEE ACTION: Accept in Principle. Add a new NOTE to 6-3.6 to read as follows: "NOTE: Maintenance of batteries should include checking and

recording the value of the specific gravity." COMMITTEE STATEMENT: Committee agrees with' intent of recommendat ion. Mandating the testing for specific gravity will not guarantee satisfactory performance of batteries. There are other parameters that are useful in determining acceptable battery rfo .ance

ER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITrEE ACTION:

AFFIRMATIVE: 14 ABSTENTION: Chisholm NOT RETURNED: Everard, O 'Connor

EXPLANATION OF ABSTENTION: CHISHOLM: Abstain because this was my proposal.

(Log #54) t t 0 - 5 9 - (6-3.6, 6-4.1, 6-4.2): Accept SUBMITTER: Gordon Johnson, Dundee, FL RECOMMENDATION: Add "and level 2" after level 1 in each paragraph. SUBSTANTIATION: To include testing requirements for level 2. COMMITTEE ACTION: Accept~ NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:


(Log #t 4) 110- 60 - (6-4.2): Accept in Principle SUBMITTER: Charles R. McDonald, McDonald Equipment Company RECOMMENDATION: Change to read:

.. .not less than fifty percent of the total connected EPSS load or not less than thirty percent EPS nameplate, whichever capacity is greater, at least once monthly... SUBSTANTIATION: To conform to NFPA Style Manual. COMMITTEE ACTION: Accept in Principle.

1. In submitter 's recommendat ion, change "total connected EPSS load" to read "total EPSS load"; and change "whichever capacity is greater" to "whichever load is greater."

2. In 6-4.1, change "not more than 30 days" to read "not more than monthly."

3. Add to 6-4.2 the following: "Consideration shall be given to the sensitivity of the application

while performing the load test specifically as to when the test is performed." COMMITTEE STATEMENT: 1. "Connected" was deleted since the term was confusing, and subject to misinterpretation (the "connected" load can vary and include redundancy; the total EPSS load can be measured).

2. Chahge to "monthly" is for correlation with 6-4.2. 3. Addition to 6-4.2 is to call at tention to the need to consider what

activities might be occurring (e.g., surgery) when testing of EPS is to be performed. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17"

VOTE ON COMMITTEE ACTION: AFFIRMATIVE: 15 NOT RETURNED: Everard, O 'Connor

(Log #24) 110- 61 - (64.2.1): Reject SUBMITrER: A. Dan Chisholm, Motor and Generator Institute RECOMMENDATION: Revise paragraph to read as follows:

"Equivalent loads, including portable load banks, used for testing shall be automatically replaced with the emergency loads in case of failure of the primary source." SUBSTANTIATION: Unfortunately, it has become a standard practice in the generator maintenance contractor field, to discon- nect the emergency loads when performing a loadbank exercise. COMMITTEE ACTION: Reject. COMMITTEE STATEMENT: Equivalent loads means any loads other than the permanent ly connected loads to the EPSS. Thus, portable load banks, by inference, would be considered an "equivalent load." NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:


(Log #CP3) 110- 62 - (6-4.2.2 (New)): Accept SUBMITTER: Technical Committee on Emergency Power Supplies, RECOMMENDATION: Add 6-4.2.2 to read:

"An annual test shall be performed at 100 percent EPS nameplate rating, less applicable derating factor." SUBSTANTIATION: To make sure that carbon is cleaned out of the engine, p e r manufacturer recommendat ion. COMMrITEE ACTION: Accept. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17" VOTE ON COMMITTEE ACTION:

AFFIRMATIVE: 10 NEGATIVE: Allen, Bey, Chisholm, Smidt, Watters NOT RETURNED: Everard, O 'Connor

EXPLANATION OF NEGATIVE: ALLEN: I have concern over my vote for proposal 110-62, which

the committee approved to require an annual test at 100 percent EPS nameplate rating. The pu.rpose was to clean out carbon in the engine, which is likely to occur in large engines runn inga t low loads. Manufacturers reported failures of engines that had been tested monthly at 30 percent n f nameplate rating. I am also aware of hospitals in Ohio where the engine failed, even though tested at 30 percent load. Therefore, there is a need to increase the load test.

The Join t Commission in EC.2.3.7 requires a 4 hr test at 80 percent of the nameplate rating on an annual basis if monthly testing is below the 30/50 rule (30 percent namepla te /50 percent maximum load). NFPA 99 and 110 are referenced on this standard.

Concern has been voiced since the meet ing of the expense of renting portable load banks, as well as whether a test at 70 percent or 80percen t would be sufficient to clean out the carbon. I recently a t tended a 2 day conference in FL Worth by the American Hospital Association on the 1995 Environment of Care Standard of the Joint Commission. I spoke with numerous at tendees (Director of Plant Operations) and they all voiced concern over increased testing requirements.

Of significance is the fact that many hospitals purchased oversized generators for future expansion. This will then require the use of portable load banks and additional expense to hospitals with shrinking budgets.

In summary, I d o a g r e e for a need of increased testing due to failures of engines tested at low loads. But, the proposal is for.100 percent load on an annual basis and does not state the length of the test. This will not pass with the membership. I feel a better proposal would be an annual test at 80 percent load of the nameplate for a duration of 4 hr.

However, the proposal for tOO percent testing should generate much discussion on the subject, and may help in eventually changing NFPA 110 to require load testing at a h igher level oft 'he nameplate rating, such as 80 percent.

NOTE: Supporting material is available for review at NFPA Headquarters. BEY: I agree with Smidt and Watters. I think an advisory only item

suggesting an annual exercise at a minimum of 80 percent of nameplate for diesels only would be appropriate, and then only for the reason that the exhaust stack temperatures would he brought high enough to prevent buildup of fuel f rom low load operation.

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N F P A 1 1 0 - - F 9 5 R O P

cHISHOLM: I would like to change myvo t e to negative. The substantiat ion for the r e commenda t i on is fine. However, there are several generators when placed in service were only borderl ine acceptable on their installation because of manufac ture rs guidelines. After a genera tor has a few years of r u n n i n g there are several o ther factors besides the build up of carbon that could prohibi t a facility f rom testing the genera to r at 100 percent . I believe 80 percent would be more appropriate .

SMIDT: This paragraph will manda te load bank testing of all level 1 genera tor sets. This is an expensive practice. T he manufac tu re r s have no t given the commit tee anyth ing more than antidotal evidence of problems caused by testing of genera tor sets us ing 30 percent of n a m e plate load for 30 minutes per m o n t h as a m i n i m u m testing criteria.

This also raises the quest ion if the in tent is to require annua l loading of the genera tor set to p reven t carbon build up would the facility that runs their set(s) at 50 percen t or 70 percent of name plate have to r un the annua l "100 percent name plate minus applicable derat ing factors or 80 percent of n a m e plate load."

The commit tee needs some hard evidence to help define the m i n i m u m testing criteria. My o ther quest ion is there an inexpensive mechanical means to load the engine of the set that would solve this issue.

I cannot suppor t this addit ional text without empirical data suppor t ing the need.

WATTERS: Because m any generators are oversized to allow for future expansion, the 100pe rcen t of EPS namepla te rating is unreasonable . It dictates the need for load banks. Therefore my vote is to reject this proposal. Consider 100 pe rcen t of EPSS load on an annua l basis.

(Log #16) 110- 63 - (6-4.3): Reject SUBMITTER: A. Dan Chisholm, Motor and Genera tor Institute RECOMMENDATION: Add new sentence or paragraph as follows:

"Normal feed circuit breakers shall no t be used for the purpose of testin~ the EPSS in Level 1 service, except as stated in NFPA 110, 6-4.6) SUBSTANTIATION: Circuit breakers have been known to fail when exercised. COMMITrEE ACTION: Reject. COMMITrEE STATEMENT: R ecommenda t i on is too restrictive. There are m a n y factors that will de te rmine which circuit breakers are used in testing the EPSS. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:

AFFIRMATIVE: 14 NEGATIVE: Chisholm N O T RETURNED: Everard, O ' C o n n o r

EXPLANATION OF NEGATIVE: CHISHOLM: I disagree with the Commit tee S ta tement in that I

have first h a n d knowledge of circuit breakers failing and no t reclosing after liberal testing.

(Log #21) 110-65 - (7-1.1): Reject SUBMITTER: A. Dan Chisholm, Motor and Genera tor Institute RECOMMENDATION: Add:

"NFPA 70B, Electrical Equ ipmen t Maintenance 1990 Edition". SUBSTANTIATION: To provide a m u c h needed reference to individuals who have difficulty f inding source material. COMMITTEE ACTION: Reject. COMMITTEE STATEMENT: 1. NFPA 70B is a r e c o m m e n d e d practice, and can no t be inc luded in Chapter 7, per NFPA rules regarding references for requirements .

2. See Proposal 110-56 (Log #19) tha t accepted a reference to NFPA 70B for informatory purposes, which means that the docu- m e n t will be included in Appendix B. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:

AFFIRMATIVE: 14 ABSTENTION: Chisholm NOT RETURNED: Everard, O ' C o n n o r

EXPLANATION OF ABSTENTION: CHISHOLM: Reason for abstaining was because I submi t ted

proposal.

(Log #56) 110- 66 - (A-1-1.4.2): Accept SUBMrVrER: Gordon Johnson , Dundee , FL RECOMMENDATION: Delete. SUBSTANTIATION: NFPA 111 has been adopted. COMMITTEE ACTION: Accept. NUMBER OF COMMITrEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:


(Log #64) 110- 67 - (A-4-5.1): Accept SUBMITTER: Gordon Johnson , Dundee , FL RECOMMENDATION: Replace the first sentence with, "It is impor tan t tha t the various overcurrent devices be coordinated, as practicable, to isolate faulted circuits and protect against cascading operat ion on short-circuit faults. In m a n y systems, however, full coordinat ion is no t practicable without us ing e q u i p m e n t tha t may be undesirable for o ther reasons or prohibitively costly." SUBSTANTIATION: The s ta tement needs rewording to corre-

ond with removing the r equ i r emen t f rom 4-5.1. MMITrEE ACTION: Accept.

NUMBER OF COMMITrEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:


(Log #20) 110- 64 - (6-4.7): Reject SUBMITTER: A. Dan Chisholm, Motor and Genera tor Institute RECOMMENDATION: Add new paragraph as follows:

"Documenta t ion of t ra ining and ceYdfication of all individuals shall be main ta ined in a different source location other than near the equipment" . SUBSTANTIATION: Present s tandards does no t define what is mean t by a "properly instructed individual". By add ing the above paragraph, a formal t ra ining program is at least implied. COMMITI'EE ACTION: Reject. COMMI3TEE STATEMENT: 1. R e c o m m e n d a t i o n is restrictive. Location of storing any such documen ta t ion is a prerogative of the owner /employer .

2. Certification of individuals is beyond the scope of this committee. NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:

AFFIRMATIVE: 14 ABSTENTION: Chisholm N O T RETURNED: Everard, O ' C o n n o r


proposal.

(Log #25) 110- 68 - (A-6-3.6 (New)): Reject SUBMITTER: A. Dan Chisholm, Motor and Genera tor Institute RECOMMENDATION: Add new appendix i tem as follows:

Lead-Acid Battery Change Outs 1. Put on eye protection, apron and gloves 2. Turn genera tor to o f f o r normal posit ion 3. Turn off battery charger or remove fuse-lock out 4. Switch offbat tery heater-lock out 5. Using a taped box end wrench, remove negative cable first 6. Remove pbsitive cable 7. Remove battery from tray; an 8D battery weighs 122#; back brace 8. Clean battery tray and battery heater blanket 9. Clean cable ends with reamer and brush; replace bolts if n e e d e d 10. Check cable for t ightness in terminal 11. Tape connect ions with red (+) and black (-) tape 12. Check electrolyte level and take hydromete r readings 13. Place batteries in tray 14. Put cables on, positive cable first, negative cable last 15. Spray connections; do no t grease 16. Tu rn battery charger on to float, check charging rate after 10

minu tes 17. Turn battery heater on 18. Test r un EPS and load test battery

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N F P A 110 /111 - - F 9 5 R O P

19. Return genera tor to automat ic SUBSTANTIATION: There are several d o c u m e n t e d cases where fire and injury have resulted because of individuals no t being properly t ra ined to handle start ing batteries. C O M M I T r E E ACTION: Reject. C O M M I T r E E STATEMENT: R ecommenda t i on is too restrictive even for an append ix material. Recommenda t ions could be contrary to manufac tu re r or contractor r ecommenda t ions , or o ther regulatory requirements . NUMBER OF COMMITTEE MEMBERS ELIGIBLE T O VOTE: 17 VOTE ON COMMITTEE ACTION:

AFFIRMATIVE: 14 ABSTENTION: Chisholm NOT RETURNED: Everard, O ' C o n n o r


proposal.

PART II

(Log #CP2) 111- 1 - (1-5 (New)): Accept SUBMITTER: Technical Commit tee on Emergency Power Supplies RECOMMENDATION: Insert new 1-5 to read:

1-5 Discretionary Powers of Authori ty Having Jurisdiction. Noth ing in this d o c u m e n t is i n t ended to prevent the use of systems, methods , or devices of equivalent or super ior quality, s t rength, fire resistance, effectiveness, durability, and safety to those prescribed by this document , providing (a) technical justif ication is submit ted to the authori ty having jur isdict ion to demons t ra te equivalency, and (b) the system, me thod , or device is approved for the in tended use. SUBSTANTIATION: Allow the use of equivalent methods , etc., if acce table to the authori ty havin "urisdiction. C O~V~I~TI'EE AC TI O N: Accep~ gJ NUMBER OF COMMITTEE MEMBERS ELIGIBLE TO VOTE: 17 VOTE ON COMMITTEE ACTION:

AFFIRMATIVE: 14 ABSTENTION: DeLerno N O T RETURNED: Everard, O ' C o n n o r

EXPLANATION OF ABSTENTION: DELERNO: Title should be "Equivalency." The discretionary

powers of the authori ty having jurisdict ion may or may no t be subject to the provisions of this standard.

(Log #1) 111- 2 - (4-1.1.1 (New)): Reject SUBMITTER: Vic D. H u m m , Vic H u m m & Associates RECOMMENDATION: Add new text to read:

"ff the emergency power system supplies s tandby energy to a bui lding fire a larm system, t hen the status of the transfer switch shall be moni to red as a supervisory alarm." SUBSTANTIATION: The purpose for this is tha t in the emergency or s tandby m o d e the bui lding fire a la rm system now has a limited energy source. Since this source is serving as the primary power and standby source to the bui ld ing fire alarm. The occupants an d bui lding staff need to be aware of the condi t ion and t ime limitations. COMMITI'EE ACTION: Reject. C O M M I T r E E STATEMENT: Issue is outside the scope of this committee. Power supplies for fire a larm systems are covered u n d e r NFPA 72. NUMBER OF COMMI'I"YEE MEMBERS ELIGIBLE T O VOTE: 17 VOTE ON COMMITTEE ACTION:

AFFIRMATIVE: 14 NEGATIVE: DeLerno NOT RETURNED: Everard, O ' C o n n o r

EXPLANATION OF NEGATIVE: DELERNO: The issue is no t outside o f scope. Mr. H u m m is a

m e m b e r of NFPA 72 Commi t tee and mus t already know that primary scope responsibility rests there.

The issue, as I see it, is whether a larm contacts should be required whenever the EPS is no t being recharged (except if fully charged). The Commit tee has no t addressed this issue.

(Log #CP1) 111- 3 - (4-2.4.2): Accept SUBMITTER: Technical Commit tee on Emergency Power Supplies RECOMMENDATION: 1. In paragraph 1, sentence 1, delete "and may be moni to red for f requency a n d / o r quality of waveform."

Add new NOTE 1 to read: "The load source should be moni to red for f requency a n d / o r quality ofwaveform."

2. In paragraph 1, last sentence: delete and make new NOTE 2. SUBSTANTIATION: Conform to NFPA Style Manual for informatory text. C O M M I T r E E ACTION: Accept. NUMBER OF COMMITTEE MEMBERS ELIGIBLE T O VOTE: 17 VOTE ON COMMITTEE ACTION:


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Committee - NFPA · SUBMITTER: Timothy G. Stillman, Fort Lauderclale, FL RECOMMENDATION: 1. Revise...

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